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Sandhya
Questions and answers by
Sandhya
, page 2
Questions (146)
A thin insulating thread of length L is attached to a point on the perimeter of a thin disk.
Disk is has radius R< L and is
2 answers
670 views
A particle of charge Q is fixed at the origin of an xy coordinate system. At t = 0 a particle (m = 0.690 g, q = 4.75 µC) is
4 answers
1,642 views
If only a single nonzero force acts on an object, does the object accelerate relative to all inertial reference frames? Is it
3 answers
1,161 views
Imagine yourself seated on a wheeled desk chair at your desk. Consider friction forces between the chair and the floor to be
4 answers
794 views
If only external forces can cause the center of mass of a system of particles to accelerate, how can a car on level ground ever
2 answers
675 views
(1)A parallel-plate capacitor carrying charge q0 is modified by the insertion of a dielectric with κ = 4.3 between the plates.
2 answers
552 views
1.The earth is constantly bombarded by cosmic rays, which are charged particles from outer space. moving vertically Find the
4 answers
1,298 views
A 160 MeV proton, moving in the x-direction, enters a region in which there is a magnetic field. The proton experiences an
2 answers
539 views
A wire of length 11 cm carries a current of 1.1 A. When the wire is placed so that the current passes through the wire along the
1 answer
472 views
Consider a parallel-plate capacitor with charge density 7.5 10-7 C/m2 on the two plates and an electric field that points in the
1 answer
423 views
Consider two small circular current loops. Suppose one loop is placed above the other (but not touching), with their areas
2 answers
552 views
A 15 μA current starts flowing in a circuit with a 3.0 μF capacitor of area 40 cm^2 at t = 0 s.(a) How fast is the voltage
1 answer
408 views
Calculate the magnetic field at the center of a wire square that consists of 120 loops and has sides of length 5 cm and carries
1 answer
415 views
1. If a steel rope and a nylon rope of equal lengths are to stretch by equal amounts when subjected to equal tensions, what must
2 answers
574 views
1.An elastic cord is 5.0m long and 1.0cm in diameter and acts as a spring with spring constant 70 N/m, what is the young's
2 answers
906 views
A railroad car rolling along by itself is passing by a grain elevator, which is dumping grain into it at a constant rate. (a)
3 answers
636 views
A uniform 2.00-m-long stick is raised at an angle of 30° to the horizontal above a sheet of ice. The bottom end of the stick
2 answers
665 views
A baseball is thrown at 88 mi/h and with a spin rate of 1500 rev/min. If the distance between the pitcher’s point of release
3 answers
1,074 views
A reflection grating is required which can resolve wavelengths as close as 0.002 nm in second order for the spectral region
1 answer
812 views
A double slit diffraction pattern is formed on a distant screen using mercury green light of
wavelength 546.1 nm. Each slit has a
1 answer
1,025 views
Imagine an airplane flying under a cloud during a thunderstorm.Do the passengers get electrocuted? EXPLAIN WHY or WHY NOT.
Should
3 answers
438 views
Imagine an airplane flying under a cloud during a thunderstorm.Do the passengers get electrocuted? Explain why or why not.
Should
1 answer
396 views
Noreen drops a big pumpkin from the top of a tall building and hears the splash on a trash can 4.50 seconds after she released
1 answer
404 views
A 25 kg box slides, from rest, down a 9-m-long incline making an angle 15 degrees with the horizontal. The speed of the box when
3 answers
927 views
A charge is uniformly distributed over a linear section from 0<x<1 such that the charge density is 10epsilon. Find the potential
2 answers
540 views
A particular amplifying device supplies electrons in a manner such that the current passing out of the device is given by I(t) =
2 answers
500 views
A 1520-N crate is to be held in place on a ramp that rises at 30.0° above the horizontal. The massless rope attached to the
4 answers
3,021 views
A snake is sunning itself on a rock. (a) If the snake is 0.3 m long, what is the approximate amount of radiation it absorbs from
2 answers
594 views
What is the approximate energy emitted as blackbody radiation by a human being each second? What is the blackbody energy
1 answer
329 views
If y = x^2 + 5x - 9,for what values of x is y>5?
1 answer
344 views
If g(x) = (x + 1)/x,find
a) g(1) b) g(0) c) g(-1) d) g(x - 1)
4 answers
400 views
Sketch the graph of
i) g(x) = sqrt(6x - x^2) ii)f(x) = (x^2 -2x - 3)/(x - 3)
1 answer
369 views
1.A cylinder rolls without slipping on a horizontal plane and then up an incline. The linear speed of the cylinder at the
2 answers
542 views
1.Three masses, m1, m2, and m3, are lying on a plane without friction and are connected by a string. A force F is applied to the
2 answers
761 views
Two equal masses m are place at positions r©û= (L, 2L, 3L) and r©ü= (3L, L ,2L). Calculate the moments of inertia Ix, Iy, Iz
1 answer
418 views
Two equal masses m are place at positions r1= (L, 2L, 3L) and r2= (3L, L ,2L). Calculate the moments of inertia Ix, Iy, Iz of
1 answer
403 views
The change in electrostatic potential energy at a point when an electron is brought from infinity to that point is deltaE.What
1 answer
413 views
A proton traveling at 10^4 m/s in the positive x-direction, enters a region where there is uniform electric field of magnitude
1 answer
717 views
A proton traveling at 10^4 m/s in the positive x-direction, enters a region where there is uniform electric field of magnitude
2 answers
568 views
A proton traveling at 10^4 m/s in the positive x-direction, enters a region where there is uniform electric field of magnitude
3 answers
1,103 views
Express the number 25 as a sum of two nonnegative numbers whose product is as large as possible.
5 answers
3,023 views
1.Approximate sqrt3 by applying Newton's Method to the equation
(x^2-3) = 0 2.The equation (x^3-x-2) = 0 has one real solution
2 answers
637 views
A 600-kg car is going around a curve with a radius of 120 m that is banked at an angle of 25.0° with a speed of 30.0 m/s.The
5 answers
10,034 views
A solution is made by mixing 5.00 × 102 mL of 0.167 M NaOH with 5.00 × 102 mL of 0.100 M CH3COOH. Calculate the equilibrium
3 answers
872 views
A 10.0-mL solution of 0.300 M NH3 is titrated with a 0.100 M HCl solution. Calculate the pH after the following additions of the
3 answers
2,086 views
$20000 amount to $ 24200 in two years under compound interest compounded annually
1 answer
349 views
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